TY  - GEN
AU  - VASIL'EVA,E T
TI  - [The ovulation time and birth control]
SN  - 0042-8825
PY  - 1998///1101
KW  - Contraception
KW  - Female
KW  - Humans
KW  - Ovulation
N1  - Publication Type: Journal Article
ER  -